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Registered
Join Date: Jun 2004
Location: Rio Rancho, New Mexico
Posts: 1,325
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Here are pics of a new chain and an old worn out chain.  
Notice how close the pivot arm is to the top of the timing case with the worn out chain as compared to new chain.
As long as you have the motor out and apart replace the chain.
Replace the sprockets if they are visibly worn. Replacing the drive sprocket on the intermediate shaft will require splitting the case.
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DOUG
'76 911S 2.7, webers, solex cams, JE pistons, '74 exhaust, 23 & 28 torsion bars, 930 calipers & rotors, Hoosiers on 8's & 9's.
'85 911 Carrera, stock, just painted, Orient Red
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